bitarray/map over bitarrays/map! for length 63 @test map!(min, b, b1, b2) == map!(((x, y)->begin #= /cache/build/tester-amdci5-8/julialang/julia-master/julia-d17b0e143d/share/julia/test/bitarray.jl:1502 =# min(x, y) end), b, b1, b2) == min.(b1, b2) == b